国产午夜一级,欧美三级午夜理伦三级在线观看,国产精品另类激情久久久免费,一级毛片免费高清,99精品黄色,日韩超级大片免费看国产国产播放器,亚洲精品日韩一区二区电影

Main Products
steel for anchor-chain Products>> Main Products>> steel for anchor-chain
Products Grade: 30CrMnTi
Specifications: Φ6.5-24 mm
Applied Standard:  GB 3077—1999
Characteristics: 30CrMnTi is mainly used for the manufacture of motorcycle chain shaft,cementite smasll shaft and small gear wheel.
Applications: Common mechanical steel
Use of Products: The Mine High Strength Circular Chain Steel strictly controlled chemical content and the inclusions,low tramp elements and good surface quality. Through the rational control of the chemical content and the optimization the rollings, the product has excellent hardenability.